CN106910360A - Using the Bus information display board communicated between car and car - Google Patents
Using the Bus information display board communicated between car and car Download PDFInfo
- Publication number
- CN106910360A CN106910360A CN201710162566.8A CN201710162566A CN106910360A CN 106910360 A CN106910360 A CN 106910360A CN 201710162566 A CN201710162566 A CN 201710162566A CN 106910360 A CN106910360 A CN 106910360A
- Authority
- CN
- China
- Prior art keywords
- bus
- station
- communication
- car
- arriving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Abstract
The present invention relates to the Bus information display board communicated between a kind of use car and car, each of which bus station constitutes bus arrival information query system, to between bus in traveling and bus station and bus between, front bus station is communicated information to using nRF905 radio-frequency communication modules, the bus of different distance as signaling pathway is pulled open by the use of same circuit or different circuit, communicated using between bus, realization communicates information to front bus station.
Description
(1) technical field：
Each bus station constitutes bus arrival information query system, between bus in traveling and bus station with it is public
Hand between car, front bus station is communicated information to using nRF905 radio-frequency communication modules, using same circuit or different circuits
The bus of different distance is pulled open as signaling pathway, is communicated using between bus, realization communicates information to front
Bus station.
(2) background technology：
With flourishing for public transport cause, increasing people starts the trip that takes bus, urban public bus lines with
The development for public transport cause rapidly increases, therefore road is also more and more crowded, and passenger's waiting time by bus becomes very uncertain,
The crowded passenger on public transport having of bus for causing but seldom, because crowded bus number many times of getting on or off the bus are long,
Each station is required for stopping the longer time, if passenger can know that each circuit bus arrival information, avoiding congestion circuit can
To alleviate public bus network jam situation to a certain extent, while be also convenient for passenger riding.
The existing intelligent bus stop board system based on GPS global locations, the extension GPS functions of being provided by the system are right
Public transit vehicle carries out real-time satellite positioning, although can in real time grasp the letter such as the current position of public transit vehicle, travel speed, direction
Breath, but the system architecture complex and expensive very flexible based on GPS global locations, and many high buildings and large mansions in city, some areas
Satellite-signal is not smooth, therefore influence popularization, and only super-large city just has on probation at present.
(3) content of the invention：
Because the patronage of getting on or off the bus when bus is by each station is different, residence time when arriving at a station is different, by red
During the crossroad of green light control, front is waited in line, by the vehicle fleet size difference of crossroad, to cause waiting traffic lights to become
Change number of times different, waiting time is different, and the skill that road conditions are different in bus traveling, speed is different, driver uses is not
Same, influence traveling various opportunities are different, so as to cause while outbound same circuit or the bus of difference circuit is gradually pulled open
Different distances form signaling pathway, are communicated using between bus in traveling, it is possible to communicate information to front
Bus station, without obtaining bus arrival information by GPS geo-location system, makes system architecture simple utilization flexibly, significantly
Reduces cost.
The signal source of bus distance travelled is the kilometer sensor on speed changer or hub for vehicle wheel, to mileage
Table sensor output pulse signal is counted can reflect wheel revolutions, obtain speed and distance travelled information, mileometer sensing
Device output signal through level shifting circuit, low-pass filter circuit it is anti-interference after output signal is accurately caught by microcontroller ports
Identification is caught, microcontroller ports are re-fed into.Mileage between the Vehicle Controller of each circuit bus preset each station, to obtain
Position in traveling.When bus communicates with bus station, if public transport station control does not have bus in the time interval of setting
Arrive at a station, when being communicated with first bus for arriving at a station afterwards, marking signal M is sent in addition, the Vehicle Controller of bus will be marked
The actual measurement mileage that arrives at a station for having M compares calculating and arrives at a station mileage error with setting mileage, takes the mileage error of arriving at a station of more than 5 times
Value, is left out by setting ratio number of times and is up to station error for several times, and remaining is averaged as offset, for correcting in measurement
Journey.The time interval of the setting need to ensure while the bus for arriving at a station all leaves, and the next bus that arrives at a station is arrived at a station
Stop position.Its speed of some vehicles is exported with mileage signal using bus signals, then by its vehicle speed mileage data transmission unit
Obtain speed, mileage.
Radio communication is used between bus and between bus and bus station, radio communication is by radio-frequency module, microcontroller
Device and nonvolatile storage are constituted, and microcontroller here uses C8051F330 chips, radio-frequency module to use for convenience of description
nRF905.NRF905 utilizes SPI mouthfuls of both-way communication, microcontroller C8051F330 to be communicated with nRF905 by its SPI interface, public
Hand over car kilometer output signal to be connected to I/O mouthfuls of C8051F330, be stored in nonvolatile storage after being read by C8051F330, car
The communication data of set controller is also stored in nonvolatile storage.
NRF905 in the radio-frequency communication module of Vehicle Controller provides powerful hopping and substantial amounts of channel
Support, many special occasions can be used in, when the communication between bus and bus is disturbed, frequency hopping can be used
Mode is solved.It even with the PCB antenna without gain its transmission range also up to 200m, if necessary to more pass at a distance
Defeated, it is also possible to make the antenna with gain into, transmission range can be expanded to more than 1 km, can meet the demand of different use,
NRF905 data receivers：Microprocessor control TRX_CE is high level, TX_EN is low level, and nRF905 entrance connects
Receipts pattern；After 650us, nRF905 monitors aerial information, waits data to be received；When nRF905 detect it is identical with receives frequency
Carrier wave when, it is high level to set carrier wave detection pin CD；When nRF905 receives effective address, matching pipe in address is set
Pin AM is high level；After a correct packet is received, nRF905 remove automatically the prefix of packet, address and
CRC check code, is then set to high level by data receiver completion pin；TRX_CE is set to low level and passed through by microcontroller
SPI interface is with the effective reception data in certain Rate extraction packet；When all of valid data are received, microcontroller
It is low level that device controls nRF905 data receivers to complete pin DR and address matching pin AM；NRF905 enters standby mode.Connect
Receipts process major cycle is constantly in listening state, recursive call receiver function.If receiving packet, response bag is sent.
Each bus station constitutes bus arrival information query system, and each public transport station control is according to the station bus
Line Address cycles through detection signal, realizes that information is handed over bus station after the Vehicle Controller response of the bus of parking of arriving at a station
Change, arrived at a station simultaneously during to channel transmission answer signal with many buses of circuit, public transport station control will continuously receive several
Wrong data bag or the intensity listened to after channel signals superposition transfinite, and illustrate that present channel is interfered, at this moment, each bus
By between its parking spot and site location apart from S, by bus travel direction, since 6 meters of site location is exceeded forward, from
It is dynamic, backward to 18-60 meters of point leaving from station, to fall into described Serial Number Range by S values to number according to every 6 meters of range incrementation numberings, on
Note generally there was only 2 to 3 cars while arriving at a station when stating setting.Public transport station control is to the bus disturbing line that arrives at a station according to the volume
Number order retransmits detection signal, as produced interference again if to the bus of failed communication, reduce described every 6 meters of scopes
Value does not repeat to number again, repeats said process to interference is not produced, and its numbering fails to during the next stop.When circuit possesses public transport
The preset numbering that will not be failed using fixation during car negligible amounts.
When the Vehicle Controller of public transport station control and the bus of parking of arriving at a station communicates, exchange each circuit bus and include
The information of arriving at a station of the bus at the station and previous 4-6 stations, its information of arriving at a station is produced by each public transport station control, and packet of arriving at a station contains
Line Address and its arrival time and current time that public transport station address, each circuit bus finally arrive at a station, and travelled by our station
Used as the time period, communication channel sends detecting to the 0.2-0.6 of running time average value needed for direction to the next stop between coming distribution station
The time of signal, on the basis of the current clock time that the time period is provided by this public transport station control, the time period distributed
Time do not overlap, the specific holding time length of time period, by the Travel vehicle in previous time period by our station to the next stop
Density determines that the time period is short for density big taking, and then selects a bus by our station and the next stop as principal communication
Bus distributes a time period, in the end time slightly before the time period selects next principal communication bus,
Continued down by this, public transport station control sends arrive at a station information and car communication table to principal communication bus, car communication table provides pre-
Put Line Address, the numbering of the bus, the arrival of the interior each circuit bus by our station to the next stop of time interval originally
Stand time and the time period, the preset time interval determines that principal communication bus leaves our station by average running time between station
Afterwards, each bus by the arrival our station time from as far as nearly order to car communication table sends detection signal, its response content bag
With a distance from the next stop, the Vehicle Controller of principal communication bus receives each bus response for numbering and bus containing bus
After signal, the bus nearest from the next stop is selected to be sent to the information of arriving at a station and car communication table, the vehicle-mounted control of the bus
Device updates information of arriving at a station after receiving the information of arriving at a station and car communication table, and is continued the time period as principal communication bus by relay
In the unspent time communicate as stated above, the time period terminates, principal communication bus be switch to from communication bus.
Principal communication bus is dynamically distributes, and remaining uses agreement as from communication bus between our station and the next stop
Interior communication channel, from communication bus travelled between station in be in reception state, 40 meters from the next stop of each bus is extremely
During 80 meters of setpoint distance, bus and bus sign off, prepare the communication with next bus station between the station.It is described to arrive at a station
Information only records every last arrival time of road bus, and record content before leaving out, the interior communication channel is according to its communication
Coverage sets the different interior communication channels of neighbor stations, but repetitive cycling is used behind 2 stations to 3 stations, stands and lead to bus
The different communication Channel cyclical that letter is also adopted by neighbor stations is set, and uplink staggers with downgoing line site communication channel of the same name and makes
With preventing co-channel interference.Bus is automatic after reaching terminal to change communication channel and website order setting, bus station's control
Device processed will arrive at a station send display to show after information processing, be easy to passenger to check.
(4) illustrate：
Fig. 1 is the circuit structure block diagram using the Bus information display board communicated between car and car.
(5) specific embodiment：
Circuit structure block diagram using the Bus information display board communicated between car and car is as shown in Figure 1, comprising:
The Vehicle Controller (1) and public transport station control (2) of bus；Wherein Vehicle Controller (1) is by radio communication mould
Block and kilometer sensor are constituted, and radio-frequency communication module is by radio-frequency module nRF905, microcontroller C8051F330 and non-volatile deposits
Reservoir AT24C32 is constituted, and radio-frequency module nRF905 communicated by SPI interface with microcontroller C8051F330, nRF905 other
Function pin is connected with I/O mouthfuls of C8051F330, and C8051F330 is communicated by I2C bus modes with AT24C32；Bus station is controlled
Device (2) processed is made up of radio-frequency module and LCD display, and radio-frequency module is by module nRF905, microcontroller C8051F330 and Fei Yi
Memory AT24C64 is lost, wherein LCD display is connected with I/O mouthfuls of C8051F330 microcontrollers, the information of arriving at a station of bus
It is stored in nonvolatile storage AT24C64, radio-frequency module nRF905 is communicated by SPI interface with microcontroller C8051F330,
Other function pins of nRF905 are connected with I/O mouthfuls of C8051F330, and C8051F330 passes through I2C bus modes and AT24C64
Communication.
Claims (2)
1. using the Bus information display board communicated between car and car, it is characterized in that using bus by each station when get on or off the bus
Patronage is different, and residence time when arriving at a station is different, and waiting time is different during the crossroad controlled by traffic lights, traveling
Middle road conditions are different, and speed is different, and the skill difference that driver uses causes the public transport of simultaneously outbound same circuit or different circuits
Car gradually pulls open different distances and forms signaling pathway, is communicated using between bus in traveling, communicates information to
Front bus station；
The signal source of bus distance travelled is the kilometer sensor on speed changer or hub for vehicle wheel, mileometer sensing
Device output signal through level shifting circuit, low-pass filter circuit it is anti-interference after send into microcontroller ports, the vehicle-mounted control of bus
Mileage between device processed preset each station, with position in being travelled；When bus communicates with bus station, if setting when
Between in interval without bus arrival, when communicate with first bus for arriving at a station afterwards, transmission marking signal M, bus
Actual arrive at a station mileage and the setting mileage calculation that arrives at a station that measures when arriving at a station that Vehicle Controller will indicate M arrives at a station mileage error, takes 5 times
The mileage error amount that arrives at a station above, is left out by setting ratio number of times and is up to station error for several times, and remaining is averaged as compensation
It is worth for correcting measurement mileage, the time interval of the setting need to ensure while the bus for arriving at a station all leaves, and makes next
The bus that arrives at a station is stopped to station location；
Use radio communication between bus and between bus and bus station, radio communication by radio-frequency module, microcontroller and
Nonvolatile storage is constituted, and microcontroller selects C8051F330 chips, radio-frequency module to select nRF905, microcontroller
C8051F330 is communicated by its SPI interface with nRF905, and public transport car kilometer output signal is connected to I/O mouthfuls of C8051F330, by
C8051F330 is stored in nonvolatile storage after reading, and the communication data of Vehicle Controller is also stored in nonvolatile storage
In；
Each bus station constitutes bus arrival information query system, each public transport station control according to the station bus circuit
Address cycle sends detection signal, realizes that information is exchanged with bus station after the Vehicle Controller response of the bus of parking of arriving at a station,
Arrived at a station simultaneously during to channel transmission answer signal with many buses of circuit, public transport station control will continuously receive several mistakes
Packet or the intensity listened to after channel signals superposition transfinite, and illustrate that present channel is interfered, and at this moment, each bus presses it
Apart from S between parking spot and site location, by bus travel direction, since 6 meters of site location is exceeded forward, automatically according to
Every 6 meters of range incrementation numberings backward to 18-60 meters of point leaving from station, fall into described Serial Number Range by S values to number, bus station
Controller retransmits detection signal to the bus disturbing line that arrives at a station according to the number order, to failed if producing disturb again
The bus of communication, reduce it is described do not repeat to number again every 6 meters of values of scope, repeat said process to not producing interference,
Its numbering fails to during the next stop；
When the Vehicle Controller of public transport station control and the bus of parking of arriving at a station communicates, exchange each circuit bus and include the station
The information of arriving at a station of the bus stood with previous 4-6, its information of arriving at a station is produced by each public transport station control, and packet of arriving at a station contains public transport
Line Address and its arrival time and current time that station address, each circuit bus finally arrive at a station, and by our station travel direction
Used as the time period, communication channel sends detection signal to the 0.2-0.6 of running time average value needed for the next stop between coming distribution station
Time, on the basis of the current clock time that the time period is provided by this public transport station control, the time period distributed when
Between do not overlap, the specific holding time length of time period is close by the driving vehicle in previous time period by our station to the next stop
Degree determines that the time period is short for density big taking, and then selects a bus by our station and the next stop as principal communication public transport
Car distributes a time period, selects next principal communication bus in the end time slightly before the time period, by this
Continue down, public transport station control sends arrive at a station information and car communication table to principal communication bus, when car communication table provides preset
Between in interval by the Line Address of each circuit bus of our station to the next stop, the numbering of the bus, reach our station when
Between and the time period, the preset time interval determines by average running time between station, after principal communication bus leaves our station, pressed
Reach each bus of the our station time from as far as nearly order to car communication table and send detection signal, its response content includes public transport
With a distance from the next stop, the Vehicle Controller of principal communication bus receives each bus answer signal to the numbering and bus of car
Afterwards, the bus nearest from the next stop is selected to be sent to the information of arriving at a station and car communication table, the Vehicle Controller of the bus is received
Updated after to the information of arriving at a station and car communication table and arrived at a station information, and continued in the time period not as principal communication bus by relay
The time being finished communicates as stated above, and the time period terminates, and principal communication bus is to switch to from communication bus；
Principal communication bus is dynamically distributes, and remaining uses the station of agreement as from communication bus between our station and the next stop
Between communication channel, from communication bus travelled between station in be in reception state, 40 meters to 80 meters from the next stop of each bus
Setpoint distance when, bus and bus sign off, prepare the communication with next bus station, the information of arriving at a station between the station
Only record per the road last arrival time of bus, record content before leaving out, the interior communication channel is according to its communication overlay
Scope sets the different interior communication channels of neighbor stations, prevents co-channel interference.
2. the Bus information display board for being communicated between use car according to claim 1 and car, it is characterised in that include:
The Vehicle Controller (1) and public transport station control (2) of bus；Wherein Vehicle Controller (1) by radio-frequency communication module and
Kilometer sensor is constituted, and radio-frequency communication module is by radio-frequency module nRF905, microcontroller C8051F330 and nonvolatile storage
AT24C32 is constituted, and radio-frequency module nRF905 is communicated by SPI interface with microcontroller C8051F330, other functions of nRF905
Pin is connected with I/O mouthfuls of C8051F330, and C8051F330 is communicated by I2C bus modes with AT24C32；Public transport station control
(2) it is made up of radio-frequency module and LCD display, radio-frequency module is by module nRF905, microcontroller C8051F330 and non-volatile deposits
Reservoir AT24C64, wherein LCD display are connected with I/O mouthfuls of C8051F330 microcontrollers, the information preservation of arriving at a station of bus
In nonvolatile storage AT24C64, radio-frequency module nRF905 is communicated by SPI interface with microcontroller C8051F330,
Other function pins of nRF905 are connected with I/O mouthfuls of C8051F330, and C8051F330 passes through I2C bus modes and AT24C64
Communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710162566.8A CN106910360A (en) | 2017-03-18 | 2017-03-18 | Using the Bus information display board communicated between car and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710162566.8A CN106910360A (en) | 2017-03-18 | 2017-03-18 | Using the Bus information display board communicated between car and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106910360A true CN106910360A (en) | 2017-06-30 |
Family
ID=59187592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710162566.8A Pending CN106910360A (en) | 2017-03-18 | 2017-03-18 | Using the Bus information display board communicated between car and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106910360A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1825379A (en) * | 2006-02-20 | 2006-08-30 | 天津大学 | Transit vehicle information system based on low power consumption short range auto-route wireless network |
| CN102737503A (en) * | 2012-06-20 | 2012-10-17 | 东南大学 | Communication connectivity analysis method for bus dynamic scheduling under internet of vehicles environment |
| KR20140129402A (en) * | 2013-04-23 | 2014-11-07 | 주식회사 이고 | Bus Information Terminal With Regeneration Capability |
| CN106094620A (en) * | 2016-06-20 | 2016-11-09 | 福州台江区超人电子有限公司 | Remote analog amount gathers warning system |
-
2017
- 2017-03-18 CN CN201710162566.8A patent/CN106910360A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1825379A (en) * | 2006-02-20 | 2006-08-30 | 天津大学 | Transit vehicle information system based on low power consumption short range auto-route wireless network |
| CN102737503A (en) * | 2012-06-20 | 2012-10-17 | 东南大学 | Communication connectivity analysis method for bus dynamic scheduling under internet of vehicles environment |
| KR20140129402A (en) * | 2013-04-23 | 2014-11-07 | 주식회사 이고 | Bus Information Terminal With Regeneration Capability |
| CN106094620A (en) * | 2016-06-20 | 2016-11-09 | 福州台江区超人电子有限公司 | Remote analog amount gathers warning system |
Non-Patent Citations (4)
| Title |
|---|
| 党三磊等: "《低压电网通信技术》", 31 July 2016, 中国电力出版社 * |
| 王兵等: "《交通信息技术及应用》", 30 September 2016, 机械工业出版社 * |
| 王金龙等: "《Ad Hoc移动无线网络》", 31 May 2004, 国防工业出版社 * |
| 黄发乾: ""公交车辆自动定位与智能报站系统研究"", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10375545B2 (en) | Communication control device | |
| US10616733B2 (en) | Communication control device | |
| CN106297348A (en) | Front truck road conditions display system and method | |
| JP2000090395A (en) | Transmission equipment and method for inter-vehicle communication | |
| WO2009121214A1 (en) | A message terminal for gps positioning and ranging and electronic license plate for a vehicle | |
| US20140098664A1 (en) | Terminal apparatus for transferring signal containing predetermined information and communication system | |
| CN106740431A (en) | A kind of headlight for vehicles automatic control system based on bus or train route collaboration | |
| CN102737514B (en) | The wagon detector that can release news, traffic congestion detecting device, vehicle attribute detecting device | |
| CN110632627B (en) | Beidou differential positioning method for ITCS signal system | |
| CN106559755A (en) | The car networking electronic communication mark broadcasting method ensured based on QoS under collision detection | |
| CN102737516B (en) | Bus signal priority control system possessing prompt function and method thereof | |
| CN106910361A (en) | Public transport intelligence station board based on nRF905 radio communications | |
| CN110211406B (en) | Bus arrival speed guide control method and system | |
| CN106910360A (en) | Using the Bus information display board communicated between car and car | |
| CN102402862B (en) | System and method for prompting priority signal of bus with information display board | |
| CN106940936A (en) | Bus station's intelligent display board based on nRF905 | |
| CN106683472A (en) | Bus station information display board based on WI-FI (Wireless Fidelity) | |
| CN106846879A (en) | Bus station's information display system based on nRF905 and WIFI | |
| CN106910362A (en) | Bus station's intelligent display board based on nRF905 and WIFI | |
| CN204178559U (en) | Based on the bus signals priority control device of RFID | |
| CN202650268U (en) | Public transport positioning system based on radio frequency communication technology | |
| CN106910363A (en) | Bus station's information display system based on nRF905 and GSM | |
| CN106781615A (en) | Using communicated between car and car and WIFI Bus information station board | |
| CN106953911A (en) | Using the system for displaying public transportation information communicated between car and car | |
| CN106846885A (en) | Public transport CFS to CFS presentation of information board based on ZigBee |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170630 |